Computing scale



May 21 W. R. MITTENDORF COMPUTING SCALE Filed Oct. 22, 1923 3 Sheets-Sheet WILLIAM R. Ml TTE N DORF.

. 'u Ni portable counting I her type, that isgf-e sealef eoinprislng a chart -liai ing ajplnrailityefseries f gretliietiens representing umber'sef perts whieli fire de s'ignatecl' index numbers and with which cooperates indicating ineniber, eent re llel "by the loaclenthe seale.-' g

vide a beam scale of thejindex nurnber type,

} further ehj ect nof t -he invention =is, to 'prot i vide' egse iep in whiehwaichert having e m Tra 1ity 'of series of ignediiations-yvill 'justed under the: contrel of the um belance to bringthatseries of-"Ig raduetions J eerie";

spondingte'the weight fof the unit" intexoper g I .ative greletien 1101 an indicating member the movement ef'whieh is g eontr elled 1 by the load 1 i 2 A; iiurthen-object" (si t-He lessen is ieflse "fprqvi-deragseele of this type whieh willeelen later any-number oi't-jpartsx ofmn unknown 1 quantity iwithin" the eiipaeity ofji'the scale and n whiehyinay be used" 1 of an i redetermin capacity ef the scale; i l further object of Inthe aec'ornpanyfi'ng drawingsFighLisE a front elevation, qaa rtlyl broken away, of a scale embodying my invention}; EF igMQ a se'n 'e; Fig; 3is;en"e11(l I Wide ai sealelef this t of the {lot simultaneeils'lyi OtherObjectsef the inventibn.wlll-zijqijean l zentalhjraeket 4 which censtitntes a supp0rting fmmeafor the mechanism. T his bracket the device-is describecliindetail. l

top plan viewhofjtl *facsiniileofjthe Wall ehimrt. I

""unclerstoed that this hes been chosen for the pnrposes bf illustraltienj= enly and that the link 1 3 mem selected ieatiiresfthereef; mey he TE STATES tien istopre- V eboiit seperateaxesxbutrthis isxnetessential to he to whichgwillndi ate 1n;the lot and weight s ell g sore-i i a ther, k thzit the nieeheni'sm 1113.3 take vario us" forms without departing from the spirit "of theinventien;; f* 1 i nn earry ngeut my invention I have .embOdlBCl thesainein a scale comprisinge load tn, Inthefpresent cdnstructienthe tw oba'l and; the beams :are mounted for movement -the eperetien of the device, itbeing only which the eemputation isbasecl may. be s'eparatelybelanee'd, Associated withthese bale nces 1s a chart he'vingsthereon a" plurality of series offgracluations eachigretluation representmgi a numberpf parts and the eomputatlons of thevseveral series of graduatlons be- Zing fibased upon :nnit's' efjdiflerenteights. 1 This 'ehartisa acljnstsible under: the contrpl of i theql initlbalanee std-cause that series of "nations correspondingte "the Weight of the unit on the unit balance to be i brought into belaneeand a iinit balance eechzcomprisingl a beam and a. ipoise adj usts ble relatively therewees are'entirelyseparate enefremthe'other F.

necesseryuthetfthe construction be suehthat l i :the load, o'r'mass of parts,"ancl the unit upon l cOQpemtiVe-reIet-iOnwith enindicatingmem 1 her which' is moved elongthat series of gra-QL,

ence. r i e g v flThewmeehamsm of the device may; take manous forms but I have here shown one forin'ivhich iswell adapted to aecomplishthe l idesiredflresnlts, j V

Cilia? embodiment of the ini so.

Inthatl p rt ventionhereshewn the scgile comprises a base I havingeleaclplatform g2 and an upright end of i'theist'andarcl' 3 is'a substantially hori is 1 provided fatgits ends with zencl plates 5 which are-jrigidly secured therete aIlCliWlllCh form in effect a p'art ef the frame.

The 10 :by thebracket7s At one side of its axis the nations uniler the-control 0f; the loaclbeL-J standard '13. Rigiclly secured to the ripper ad gb alanee comprises a beam 6whichi f is pivotally mquntecl bet-Ween itsenclsgupon a bracketbrflstanderd Textenclilig upwardly ifronithebra-eket 4. As here shewn,the beam a has ineunteclqtherein; llgnife edge ipiv otsi 8 i whiehaengag'e the usual V bearings carried n n left hand side in Fig. 1, theheam is pivotally cdnnectetl with a draft rod 9w.hich is eon-Q nectecl'with the-platform 2, :either'directlyor i i rigidly connected with the 1p oise2 8. In the present instance, the poise: is ;1 provided with an opening through which the flexible mem 1' berreaten ds and in it is secured by a set 1 screWjl L 'Ifdesired,a coiled springf lemay;

V p f be interposedin the flexible m mbe to hold: "the sametaut. One stretch lofthejendless it ,flegrible nielnber, preferablyahe lower stretch I thereof," extends{about drum which is mounted-mashed 4 7 j ournaled in the arms oi thebracket 24 and which is provide df Witln an operating handle or crank 48; i The cable for flexible member preferablyhas aplurality of windings extending about the druingand may, tiff desired,g befprovided with spiral grooveaasshovvn atj49,to separate andguide a the several windingsof the cable? @The cable 1 Inay be rigidly secured to the drum infany suitable manner. Theaxiso'fflthe druinis 1 preferably arranged directly beneath the axis of the beam 22 and is spaced from the axis 1 -of the;beam a distance equal to the radiusof the drum'so that theyflexiblemember or cable, which extends horizontally from the drum, will have: tangential contact {with the drum'at a pointfin line' with thefaxijs of the beam. By thus mounting {the actuating Qmernber formoyem'ent aboutthe axis of the beal'nfl the movement ofthe beam will not anyway he efli'ected by the actuating device for the poise andthis actuating device will not, interfere with the jbal ancefof the'be'am.

'jThe, actuating device forthe poise is so connected with the cyl indricjal chart that movementhwill be irnpartedyto the chart in an amount directly proportionate to the move ment oftheP iSeTI2SM "In thepresent constructionthe drum a9 is provided with a por tion rigidly secured thereto, constituting a part thereof; and :of the same character. and diameter as the dl l IAQ. j An endless flexible member or cable51 extendsraboutfthis second portion of thedrurn andaboutadrurn or pulley 52. mounted on a shaft 53 supported byfthe bracket 4. and adjacent end plate 5 Inasmuch asrthe aXisof tbedruln 52is transl a verse to the axis of the drumf49+5 Ifhave 1 t passed therespective stretches of the cable or endless member about guidepulleys 54 which properly positionand guide thesame .Wlth relation to the druin 52; The cable t 3 1s given a sufiicientjfnumber of windings 1 about therespective drumsto cause the same to-irotate therewith and may, f des red bel rigidlysecured thereto in any suitable n1an- "ner; Movement is transmittedfrolnthepul ley. or drum 52 to theqcylindric al ch art 53 means of a vertically movable raclrbar55 the f tee'thof which lnesh fwith a pinion 56 rigidly secured to the shaft of the ehartyand whieh; is held in mesh with said p nion by i means of a proi ctionpor stud 57 carriedjlhy the 'end' plate 5,1 Thelovver portion of the which seryes tof guide the rack bar vertical line. Rigidlyr secured to the shaft 53 is-a cam 59 the operative edge otwhich I i contacts wiflra stud or roller 60 rigidly seon the pinion 56 jtohold'the stud 60 on the raclrbar:constantlyinrontact With the earn and to restore the chartto its initial position; Whenthe cam is moved in a reverse direction.

In the present construction the beam 22-is provided With graduations and index numbers corresponding: to the index numbers on the chart andyitwill be apparent that as'the" poise is 'rn oved alongthe bea1n22bytheactionofthe operating handle 48 the chart will berotated to a corresponding extent so that ,the index number-of the series of; gra'duationswhichrisexposed through the reading openlng Wlll; always correspond to the index number on the beam which is indicated by the poiSe28$ 1 i a V i In the operation :ofthe device, when it is desiredto "determine the number of partscontained in a mass of unknown quantity; the massm s placed upon the load platform 2 and thepoise 18 adjusted by hand toa positionin which it will counterbalance the load on the platform, that-1s,until a state of equilibrium vhasflbeen established in the load balance,this,

adjustment of the'poise serving to move the indicating member 38 a to a position corresponding tothe Weight of the load. The poise of the unit balance is then'lnoved to its extreme left hand position, as shown in 1,

and a unit-ofthe parts to becounted is then placed ln the unit receptacle25. Thisunit preferablyconsists of a single piece and if thereof upward, the operating handle 48 is aotuated to movethe poise 28to the right a 1 distance sufficient to balance the Weightpf the unit in theunit' receptacle 25 and'thereby establish a state of equilibrium in'the unit balance 'The operation of the actuatingdevice to lmpart this movementto the poise 28 will rotate the Cylindrical chart a distance thisjp ie ce issuflicientlyheaify tooverhala nce i the beam 22, and move the right hand end I05 suflicient to bring into line with the" reading opening 37 that series of graduations correspondingto the eight of theunit, as indi: cated by the index numbers on the chartand on the .unit beam respectively. The chart hav ng been thus adjusted according to the 38fhavingbeen adjusted according to the V which haveheeii placed inthe unitreoeptaclei 130; oo i t suohamassl have provided the'beam 6 with 1a unit receptacle 62yvhich, i presenlt instance, is carried by a Iho1der .63 securedto it the; counterpoise'lZ the weightfof the mass is such; that the poiseflS will not move the leveror beam downwardlya inumbero'f A the parts to be counted are droppedinto the unit receptacle 66, Whichrhasafixed TELUO With relationto the load platform Qiuritil the eight in the unit reoeptaole is siiffioieiit to move the a beam to its lowermosthposition. The lpois'e 181s then 'moyedto the left a distance sufiioient to balah Cetheheam G-i Thereafter the unit 'balanoeisoperated iii the jneraboive described and'a readingtaliiarfirom the 'chart 33. This reading; ywilljrepi'esent the number of parts in gthef mass hioh ar I counterbalanced by the poise lsonthe hearn 6. wThe remainder. of: the rnass of PQJTt SJS =couiiterbalancedbythelparts iil the fixed ratio unitreeeptaclefiQ and the humber otpa-rts ilrthis portionofthe mass s determiner} by- "j imiltiplying the nu jiher of parts in th fixed ratio unit receptacle by th number representing the ratio betweeri thiht'llfiit r pt dfi -andthe load platform, whioh .niayhe ;t( 1,v or any other suitahleratro: hjolnco ve i enee of computation :I prefer to rprovlde Wall ,p

chart, as shown atfiinrFig; )6, 1117011 11611 iisshownthe number of-parts'. oi1 the ioad platform which will be balanced glyeil *humberTof parts in the fixeotflrat o un tfre V ceptaole- :The'sum of the numbers of parts;-

ijli thetwo portioiis of the load will represent the tofal number of parts 1n th efloac l L If itis desired to" count out a CBI'tiLlIl pre 'determ-inednumher of'parts one of the parts to be;Counted-isplacedjin the unit receptaeie and the actiiatingid eyioe is operated until thebeem 220i theunit balance isinia state [ofequilibrium Tlle poise 18 of the'1oac1hal anoe is then nlovedtoftheright until the indieating member 88 registers with the 1111111 her, onthe series of graduations which is ex:

" rposedet the reading operiingB'Z, WhiCliCOl responds to the number of'parts Whichis de- :sired and the parts are then placed upon the I load jolatformuntil the beam 6 eofmes to y :aneef ,The numberof parts; thus placedon'f the roadplatform will be the desiredjnurilber Inasm uoh as the computing'ohart33 .is au "toniatioally positioned under the eontroi of )the unit balance iitiis not essential to the operbai- Weight of the unit. E

ation of the scale that thelindexilumb on the lbe'am of theliiiit balance andon the chart positioned Without fete" heeto these. numbers, 1Thereareioertamad vantages, however,

in using,ir dex iiumhersflndl prefer to zr i apply themfto the unitf bi tln and the Chart p' IOneofthe priiicip'alyadyaiitages:isthatfiyhen fthe index mihiberjofia unjit whieh is ire? quently i sed has onoe, been determined :it M s not iieoes'sary fin subsequeiit operations; 111

yolyihg that unit to placeja-unit in theunit I receptacle bala'noefthe heaih22- bi iti it 'isonly anecessary to move th'ejpoise-28jfltoa positi'oowhioh will indicate-the iiidex; iiuno ,ber of that unitland "thecempeting ehart beg accurately positioned .While lhayeshowf and derstood-that I do notdesirelto'be limited to" the 1 details thereof as various modifications may appear tea person skilledi i the art;

Having now fully desoribed myiiiveiitiorl, f whatlfola n'i as new and desii e to seeureby Letters Pate t,- s i according to; 115

v y described enez.inbodirner t of my JILVQIIUOH I WlSjhlt to bejunr jy 1. vIn aoo nting' sCale,"a jioad1balance;and a unlt balanoe eaoh comprising a beam and,

separately adjiistable jpoise" therefor, a a r chart having; a'phirality ofseries of grade? ations representiiig numbers" of parts,- anfin cheating member tojcoo perate with said fcha'rty and meansrontrolledlby theiadjust- 1 mentof said poises to oause said ind'ie'ating'f memb'er to register; witha selected series of graduationsion said ehartfand to indioaitef in said 7 series of graduations that l grade ation which represents the numberb'f parts oIitheload platform" of said 'loadbalanoef j :2. In afscale, a loafd balaiiee comprising a beam and a poise thereforya" unitbalance "comprising a beam and a -poisethere for, said beamsfrbelng separately mounted and Sitld poisesheing separatelyadjustable with relation' to therespeetive heams,ajohart having a plurality of series of graduationsjrepre senting numbers "of parts, an indicating ir nember to cooperate with "Said chart, and lme'ans' controlled by thejadjustment of said poises to cauSe said indicating memberi to 're gister with a selected seriesoif gradliations on said ehart and to. ihdioate eased series of grachiations -that 4 graduation which repgresentsl the numherof parts on 'the 1oad151at form of said lead bala ioejd unit balance, each comprising beam" and y y 7 -y 3,111 a 'oount ngsoaie, apload balance and i a separately adjustable poise therefor-fa J I moyahi e" oharthaving phiralityfof series of graduat ons representing? numbers of.

parts, an indioatiiig member "to oooperate with said e-h'art, means controlled Joy one of f oneof saicl series of gr a chiat'ions into eooper-J 'ative relation to said indicatingmeiiibergar d saigtbalanoes toaotimtersaid Chart tqgmove nations corresponding to weight o f a unit, a load balance comp'rising a beam and i a poise adjustable relativelyfto said beam,

means-controlled by the position of the poise of said load balanceto adjust said indicating memberwith relation to said selected series of graduations, and a "unit receptacle connected with ,the beam of said load balance at afixeddistance fromitsaxis;

7 35. In a counting -scale,;a chart having a plurality of series of graduations represent 1 ing numbers ofparts, each serieslof graduations having an-index number, an indicating member to cooperate withksaid chart, said" chart being adjustable: to bring a selected.

51 series of graduationsq intov cooperative rela? tion to said indicating member, a-unit balance comprising a beam having index numbers cor responding to the index numbers ion said chart and a poisej adjustable with 'relationrlto said beam, means controlled; said'poise to adjust saidc cooperative relation with said indicating member thatseries of graduations having an index number corresponding to the index :bylthe position {of numberfof said beam which isindicatedj by said poise, and a loaclbalancehaving means] to adJus't said indlcatingmember relatively, 'tosald series of gradua'tlons.

36; In a counting scale, a movable, chart one of said series ofgraduations according to] said indicating member ,i'nrelat-ion to said selected series according totheweight ofthe' mass of partsto be counted; n i i '40:

937. In a counting scale, amovable having a plurality of! series Ofgraduations significant of the weight ofdifierent units, an

indicating member (to cooperate nwith said chart,meanslcontrolledby the weight of a, unit to operate saidchartto select oneof u 9 series of graduations, andlmeans controlled art to bring ,into

said load balance. p 7 whereofil aflix my signature 1 hereto. V a 7 RfMI-TTENDORR i by the weight of the mass ofpai'ts to be count ed toposition said indicating member inrela tion to said selected series of graduations.

38. In acountlng scale, a load balance anda unit balance, each comprlsmg a beam and a separately adjustable poise therefor, amovable chart having a pluralityol series of i graduations representing numbers of parts, "anin'dicating member to cooperate with'jsaid chart, means controlledby said units balance ,to sactuate said chart to move one of said seriesofgraduati'on's intocooperativerelation 7 with saidfindicating memberymeans 'controlled by said load balance to movesaid; indicating inemberrelatively to said series of graduations, and a unit receptacle connected with saidload balance.

e39. Ina count ng scale, a chart having a V plurality ofseries of'graduations represent ingnumbers of parts, an indicating member tolcooperate with'said chart, said chart being 7 adjustable to bring a selected series ofvgrad nations into cooperative relation to said indicating member, 31111113 balance having means to ad ust saldchart accordlng'to thewelght ed series of graduations according to the weight of the load on said load balance, and

4 of a unit, a load balance having means to ad- V ]L1St said'lndicat ng memberalong the select it a unit receptacle connected with said load' balance, Q a 7 V 7 3 4 0, In ajcountmgscale, a chart having a plurality of series of graduations represent ing numbers of parts, a load balance comprising a beam and a poise, an indicating member.

connectedwith said poise and arranged to (20+ operatewith said chart, a unit balance, means 1 controlled bysaidunitbalance to adjust said 1 chart to bring a selected series of graduations into cooperative-relation with said indicating member, and aunit receptacle connected with In testimony 

